The police department's incident blotter, as of Friday morning, indicated officers have responded to as many as 45 overdose emergencies since the start of the year.

The latest blotter item was a call for help Thursday at 12:30 p.m., when police were dispatched to an apartment house at 40 Tremont St. to investigate a report of a 37-year-old woman passed out on a couch.

Police said it took "a couple shots" of the antidote Narcan to revive the victim, who was then transported to Morton Hospital for evaluation.

They also said they asked the woman, once she had come to and was in the ambulance, where she had bought the heroin. She allegedly said she'd bought it from a dealer in the Whittenton neighborhood.

Thursday's incident was the second overdose call at the Tremont Street house within two days.

The first was at 5 p.m. Wednesday, when emergency personnel used Narcan to revive an unconscious male. In that case, police said, three other people in the apartment, one of whom dialed 911, claimed not to have been in the room when the 38-year-old allegedly shot up and passed out.

A public forum to discuss the problem of the recent availability of a particularly potent strain of heroin and the growing number of associated overdoses in Taunton, is scheduled for 6 p.m. Monday at Friedman Middle School on Norton Avenue.

Among those expected to attend are Bristol County District Attorney Samuel Sutter, Mayor Thomas Hoye Jr. and police Chief Edward Walsh.